When I am with others, they are my teachers. I can select their good points and follow them, and select their bad points and avoid them.
Not too isolated, not too many relationships, the middle, that's wisdom.
Be loyal and trustworthy. Do not befriend anyone who is lower than yourself in this regard.
Future generation is the most important thing.
Ignorance is the night of the mind, but a night without moon or star.
Signs and symbols rule the world, not words nor laws.